.bg{
  position: absolute;
  left: 0;
  top: 0;
}
.video0, .poster0{
  width: 62%;
  height: 19%;
  position: absolute;
  left: 34px;
  top: 339px;
}
.video1, .poster1{
  width: 54%;
  height: 18%;
  position: absolute;
  left: 407px;
  top: 792px;
}
.video2, .poster2{
  width: 62%;
  height: 19%;
  position: absolute;
  left: 30px;
  top: 1221px;
}

.leftBtn, .rightBtn{
  width: 56px;
  height: 92px;
  position: absolute;
  left: 0px;
  top: 897px;
  //background: #640000;
}
.rightBtn{
  left: 1024px;
}
.botBtn{
  width: 150px;
  height: 150px;
  position: absolute;
  right: 84px;
  bottom: 16px;
  //background: #640000;
}
